Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/20/2006 | 0000 | 12/31/2014 | 2359 | Does not affect quality |
Subject: | TWP/AERINF/C2/C3 - Reprocess: Metadata issues |
DataStreams: | twpaerich2nf1turnC3.c1, twpaerich2nf1turnC2.c1, twpaerich1nf1turnC2.c1, twpaerich1nf1turnC3.c1 |
Description: | During a recent review of the AERINF data object design (DOD) it was determined that there were several problems in the AERINF header. In particular: 1) The variable attribute Time_UTC_hours:units is reported as "". This should be reported as "hours since YYYY-MM-DD hh:mm:ss 0:00 GMT". 2) The global attributes command_line, dod_version, and process_version are being passed through from the input data from the ingest. These attributes should be reporting the command_line, dod and process version of the VAP rather than the original data. 3) There is no global attribute "history". This is a required attribute and important for comparing different instances/versions of the data for QC purposes. 4) In the global attribute "Input_Datastreams", the process version of the input data files is reported with a "-" in front of it. 5) Occasionally the timestamp of the netCDF file does not match the first sample of the file, which occurs when the AERINF processing removes the first samples at the start of a processing day. These metadata errors will be corrected on the next release of the VAP and old data will be reprocessed or corrected through post-processing. |
Suggestions: | Issues do not affect data quality. Time values should be determined from base_time and time_offset variables in file, not from timestamp in filename. |
Measurements: | twpaerich1nf1turnC3.c1: more
twpaerich1nf1turnC2.c1: more twpaerich2nf1turnC3.c1: more twpaerich2nf1turnC2.c1: more |